From: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
To: linux-arm-msm@vger.kernel.org
Cc: konrad.dybcio@somainline.org, marijn.suijten@somainline.org,
martin.botka@somainline.org, phone-devel@vger.kernel.org,
linux-kernel@vger.kernel.org, agross@kernel.org,
bjorn.andersson@linaro.org, mturquette@baylibre.com,
sboyd@kernel.org, robh+dt@kernel.org, linux-clk@vger.kernel.org,
devicetree@vger.kernel.org,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@somainline.org>
Subject: [PATCH 7/9] clk: qcom: mmcc-msm8998: Set bimc_smmu_gdsc always on
Date: Sat, 9 Jan 2021 14:46:15 +0100 [thread overview]
Message-ID: <20210109134617.146275-8-angelogioacchino.delregno@somainline.org> (raw)
In-Reply-To: <20210109134617.146275-1-angelogioacchino.delregno@somainline.org>
This GDSC enables (or cuts!) power to the Multimedia Subsystem IOMMU
(mmss smmu), which has bootloader pre-set secure contexts.
In the event of a complete power loss, the secure contexts will be
reset and the hypervisor will crash the SoC.
To prevent this, and get a working multimedia subsystem, set this
GDSC as always on.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
---
drivers/clk/qcom/mmcc-msm8998.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/qcom/mmcc-msm8998.c b/drivers/clk/qcom/mmcc-msm8998.c
index f9510a248a36..b49c4137b7d7 100644
--- a/drivers/clk/qcom/mmcc-msm8998.c
+++ b/drivers/clk/qcom/mmcc-msm8998.c
@@ -2663,7 +2663,7 @@ static struct gdsc bimc_smmu_gdsc = {
.name = "bimc_smmu",
},
.pwrsts = PWRSTS_OFF_ON,
- .flags = HW_CTRL,
+ .flags = HW_CTRL | ALWAYS_ON,
};
static struct clk_regmap *mmcc_msm8998_clocks[] = {
--
2.29.2
next prev parent reply other threads:[~2021-01-09 13:55 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-09 13:46 [PATCH 0/9] Clock fixes for MSM8998 GCC, MMCC, GPUCC AngeloGioacchino Del Regno
2021-01-09 13:46 ` [PATCH 1/9] clk: qcom: gcc-msm8998: Wire up gcc_mmss_gpll0 clock AngeloGioacchino Del Regno
2021-01-14 19:07 ` Rob Herring
2021-01-14 21:44 ` AngeloGioacchino Del Regno
2021-01-14 22:12 ` Jeffrey Hugo
2021-01-14 22:13 ` AngeloGioacchino Del Regno
2021-01-14 22:33 ` Jeffrey Hugo
2021-01-14 22:40 ` AngeloGioacchino Del Regno
2021-01-14 22:44 ` Jeffrey Hugo
2021-01-14 22:49 ` AngeloGioacchino Del Regno
2021-01-09 13:46 ` [PATCH 2/9] clk: qcom: gcc-msm8998: Add missing hmss_gpll0_clk_src clock AngeloGioacchino Del Regno
2021-01-09 13:46 ` [PATCH 3/9] clk: qcom: gcc-msm8998: Mark gpu_cfg_ahb_clk as critical AngeloGioacchino Del Regno
2021-01-09 13:46 ` [PATCH 4/9] clk: qcom: gcc-msm8998: Fix Alpha PLL type for all GPLLs AngeloGioacchino Del Regno
2021-01-09 13:46 ` [PATCH 5/9] clk: qcom: mmcc-msm8998: Set CLK_GET_RATE_NOCACHE to pixel/byte clks AngeloGioacchino Del Regno
2021-01-09 13:46 ` [PATCH 6/9] clk: qcom: mmcc-msm8998: Add hardware clockgating registers to some clks AngeloGioacchino Del Regno
2021-01-09 13:46 ` AngeloGioacchino Del Regno [this message]
2021-01-09 13:46 ` [PATCH 8/9] clk: qcom: gpucc-msm8998: Add resets, cxc, fix flags on gpu_gx_gdsc AngeloGioacchino Del Regno
2021-01-09 13:46 ` [PATCH 9/9] clk: qcom: gpucc-msm8998: Allow fabia gpupll0 rate setting AngeloGioacchino Del Regno
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